Ensure the ART binary is present on PATH.

In case we import a PATH that lack the APEX bin directory from the host
OS in the chroot test environment.

Test: art/tools/run-libcore-tests.sh --mode=device --variant=X64 \
        org.apache.harmony.tests.java.lang.Process2Test
  Check with an early exit in the script that it adds a path element if
  necessary.
Test: art/tools/run-libcore-tests.sh --mode=host --variant=X64 \
        org.apache.harmony.tests.java.lang.Process2Test
Bug: 210859761
Change-Id: I78d34c84b2e6290d48aff3c4c22f980a6e261174
1 file changed